Innersole and method of making the same



March 30,1948. F. 1.. AYERS 2,

INNERSOLE AND METHOD OF MAKING THE SAME Filed Feb. 4, 1947 Patented Mar. 30, 1948 UNITED STATES PATENT OFFICE masons A1 METHOD HE SAME or MAKiNG Fred L. Ayers, Waltham, Mass. Application February 4, 1941, Serial No. 726,335

r 11 Claims. (CI. 36-22) a strong inherent tendency to lie sharply inward- 1y, so that when the lip is cemented to it, the inherent tendency of the lip to lift the folded layer will be ineffective to do so, the resultant lip being still biased to extend inwardly at a sharp angle.

It is a further object of the invention to so form this lip that it is unnecessary to secure the For a complete understanding of this inven-,

tion, reference may be had to the accompanying drawing, in which Figure 1 is a perspective view of an innersole embodying the invention.

Figure 2 is a detail sectional view on line 2--2 of Figure 1.

Figure 3 is a view similar to Figure 2, but show ing the parts in an earlier stage of manufacture.

Figure 4 is a view similar to Figure 3, but showing a modification.

Figure 5 is a view similar to Figure 4, but showing the lip turned back and cemented to the re-' inforcing strip.

Figure 6 is a view similar to Figure 2 but showing a further modification.

Figure 7 is a view similar to Figure 5, but showing the modification similar to that of Figure 6.

Referring first to Figures 1, 2 and 3, an innersole blank I is inwardlychanneled about its margin at 2 to form alip 3'. This channeling may and the folded layer 1, as well as the extended portion 8 of the layer 5.1s cemented to the face of the blank. Thisextension 8, cemented to the face of the blank, is of great importance since it acts to retain the layers 5 and 8 in their sharp inwardly inclined position. The lip 3. is then turned inwardly and cemented to the outer face of the layer 5 as shown in Figures 1 and 2. While the lip 3 would of its own tendency tend to raise the double layers 5 and 8, the attachmentof the portion 8 to the blank actively resists any such extend entirely about the forepart of the shoe,

and it may also extend through the shank, or

entirely around the shoe, if desired. As shown A condition, the layers 5 and 8 being in contact tendency so'that the resultant rib comprising the lip 3 and the layers 5 and 8 is biased to incline sharply inwardly and over the single layer 1 of the reinforcing strip. As a further reinforcement, a strip [0, as shown in Figure 6, may be cemented to the top or channel face of the feather ll remaining when the lip 3 was raised, and to the outer face of this lip in its inwardly in clined and folded back position.

If desired, the outer portion of the layer 5 may be further extendedoutwardly than. is shown in Figures 1, 2 and 3, to more or less overlie the lip 3. This is shown in Figure 4, the reinforcing strip then comprising the single layer 1, the double layers 6 and 5, and an outer single layer l5, this layer l5 being a prolongation of the portion 8 shown in Figures 2 and 3.

It will usually be found, desirable to terminate the layer I5 somewhat short of the outer edge of the lip 3 so that the lip 3, at least its extreme 'edge, may be cemented directly to the layer has this provides a somewhat better bond for the lip than if it beattempted to cement together the fabric layers l5 and 5. However, if desired, the layer I 5 may be extended to the outer extremity of the lip 3. The lip 3, reinforced by the layer 15, may then be folded back and cemented to the double layers 5 and. 6, as shown in Figure 5, and also, if desired, a further reinforcing strip l0 may be applied to the top face of the marginal feather of the blank and the lip as shown in Figure '7 in the same manner that the lip and reinforcing layer is reinforced by a similar strip It in Figure 6.

In these constructions, it will be noted that the reinforcing layer, which may well be of fabric,

which is cemented directly to the top face of the blank and over which the lip is inwardly folded, is of such a construction that it is strongly biased to take its sharply inward inclination and that this cannot be overcome by any tendency of the lip of the blank to lift it from this position, and that no stitching or other means for attaching the double folded portion to the underlying single layer 1 is required to accomplish this.

From the foregoing description of certain embodiments of this invention, it should be evident that various changes and modifications might be made without departing from its spirit or scope.

I claim:

1. The method of making an innersole, which comprises folding a strip lengthwise on itself in opposite directions at diflerent widthwise loca,-' tions to form a single thickness portion partly overlaid with a double thickness portion, the upper layer of said double portion extending beyond the lower layer, the confronting faces of said double thickness portion being cemented together, cementing said strip to one face of an innersole blank about and spaced inwardly from its margin and with its single thickness portion turned inwardly and said extension projecting outwardly, said blank being inwardly channeled about its margin to form a lip adjacent to said face, and turning said lip inwardly and folding and cementing it against the outer face of said double portion;

2. The method of making an innersole, which comprises folding a strip lengthwise on itself in opposite directions at different widthwise locations to form a single thickness portion partly overlaid with a double portion, the upper layer of said double portion extending beyond the lower layer, the confronting faces of said double portion being cemented together, cementing said strip to one face of an innersole blank about and spaced inwardly from its margin and with the single thickness portion extending inwardly and said extension projecting outwardly, said blank being inwardly channeled about its margin to form a lip adjacent to said face and a marginal feather, turning said lip inwardly and cementing it against the outer face of said double thickness portion, and cementinga layer of strip material to theexposed face of said lip and to the face of the marginal feather of said blank outwardly of said lip.

3. The method of making an innersole, which comprises-folding a cement coated reinforcing strip on itself to form a double layer between single layer margins, said double layer being inclined sharply over one of said-margins, securing said strip so folded to the face of an innersole blank channeled inwardly to form a lip and a feather beneath said lip, and with said double layer inclined inwardly and with said other margin overlying, secured to, and reinforcing said lip, and then turning said lip so reinforced inwardly and securing it to the outer face of said double layer. v

4. The method of making an innersole, which comprises folding a cement coated reinforcing strip on itself to form a doublelayerbetweerr of said feather.

5. An innersole comprising a blank channeled inwardly about its margin to form a marginal lip and a feather, said lip being reinforced with a layer of sheet material and turned inwardly and cemented to a double portion of said sheet material secured to the lip face of the blank and inclined inwardly, the stitch securing rib formed by said lip and sheet material being sharply inwardly inclined and having an inherent tendency to remain in such inclined position.

6. An innersole comprising a blank channeled inwardly about its margin to form a marginal lip and a feather, said lip being reinforced by a layer of sheet material and turned inwardly and cemented to said sheet material folded on itself to form a single layer and a double layer inclined inwardly from the line of fold, said lip being cemented against said double layer, the stitch securing rib formed by said lip and sheet material being sharply inwardly inclined and inwardly, the stitch-receiving rib formed by said lip and sheet material having an inherent tendency to lie sharply inwardly inclined.

8. An innersole comprising a blank channel inwardly about its margin to form a marginal lip and a feather, said lip being reinforced by sheet material applied to its outer face and turned inwardly and cemented to a double portion of a strip of sheet material secured to the lip face of the blank and inclined inwardly, said lip reinforcement comprising a. portion of said strip, the stitch-receiving rib formed by said lip and sheet material having an inherent tendency to lie sharply inwardly inclined.

9. An innersole comprising a blank channeled inwardly about its margin to form a marginal lip and a feather, said lip being reinforced by sheet material applied to its outer face and turned inwardly and cemented to a double portion of a strip of sheet material secured to the lip face of the blank and inclined inwardly, said lip reinforcement comprising a portion of said strip, and

a layer of strip material cemented to the outer face of said lip and to the channel face of said feather. l

10. The method of making an innersole, which comprises securing a strip comprising a single layer and a double layer inclined sharply over said single layer to one face of an innersole blank channeled inwardly to form a lip and with said double layer projecting inwardly from the root of said lip and the upper of said double layers extending outwardly beyond the lower layer and directly secured to said, blank, and then folding said lipinwardly and securing it to the outer face of said double layer.

11. The method of making an innersole, which comprises securing a strip comprising a single layer and a double layer inclined sharply over said single layer to one face of an innersole blank channeled inwardly to form a lip and a feather andwith said double layer projecting inwardly from the rootfof said lip and the upper of said double layer extending outwardly beyond the lower layer and overlying and directly secured to said blank, then folding said lip inwardly and securing it to the outer face of said double layer. and then cementing a reinforcing layer to the outer face of said lip and to the channel face of said feather.

' FRED L. AYERS. 

